6 citations,
November 1997 in “International Journal of Dermatology” Women with acne and irregular periods had higher active testosterone levels, which could suggest the usefulness of antiandrogen treatment.
Hair and nails can show hormone changes during puberty in dogs.
1 citations,
January 2023 in “International journal of urology” Low zinc levels are linked to low testosterone but not to sexual problems.
3 citations,
November 2021 in “Stress” Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.
1 citations,
October 2023 in “PloS one” Cosmetic hair treatments can increase hair testosterone levels, while natural hair color does not affect it.
May 2021 in “Journal of the Endocrine Society” Adolescents with PCOS have higher levels of certain androgens, which are linked to hair growth but don't help diagnose PCOS better than testosterone levels.
October 2022 in “Linköping University medical dissertations” The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
June 2022 in “Journal of Experimental Biology and Agricultural Sciences” Higher testosterone harms sperm motility, while higher estradiol improves sperm survival.
3 citations,
October 2021 in “Clinica Chimica Acta” Hormone levels in hair vary across the head, with the highest concentration of a key hormone linked to hair loss at the top.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
22 citations,
January 2006 in “International Journal of Andrology” Taking oral testosterone with finasteride or dutasteride doubles testosterone levels, and food slightly affects it.
12 citations,
December 2017 in “Scientific reports” The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
56 citations,
October 1983 in “Archives of Dermatology” Some women with acne have higher levels of free testosterone, which might suggest using hormonal treatments for acne.
18 citations,
May 2014 in “Menopause” A 5 mg dose of transdermal testosterone cream effectively restores testosterone levels in postmenopausal women.
10 citations,
February 2008 in “International Journal of Andrology” A combination of nanomilled oral testosterone and dutasteride normalized testosterone levels in men with low testosterone and is safe for short-term use.
6 citations,
September 2012 in “Clinical Interventions in Aging” Honokiol might help reduce male skin aging by maintaining testosterone levels.
4 citations,
October 2000 in “Contraception” The right dosage of CPA and TB can work as a safe and reversible male contraceptive in monkeys.
November 2024 in “Psychoneuroendocrinology” Testosterone increases hair testosterone levels, stress raises hair cortisol, and relationship status affects hormone levels.
July 2022 in “Research Square (Research Square)” Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.
6 citations,
November 1980 in “Clinical Endocrinology” Measuring plasma testosterone glucosiduronate is a reliable way to detect high male hormone levels in women.
12 citations,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain sex hormones and antiandrogens can either slow down or speed up the growth of human hair follicle cells depending on their concentration.
11 citations,
November 2006 in “Journal of Veterinary Diagnostic Investigation” An alpaca acted like a male and couldn't have babies because of a benign tumor in its ovary that caused high testosterone levels.
23 citations,
June 2015 in “Clinica Chimica Acta” Researchers found potential urine markers for polycystic ovary syndrome, including testosterone-glucuronide and 11α-hydroxyprogesterone, which may help diagnose the condition.
46 citations,
May 2012 in “Molecular and Cellular Endocrinology” Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.
44 citations,
January 2008 in “Fertility and Sterility” Longer CAG repeat lengths in the androgen receptor gene are linked to higher testosterone levels in women with PCOS.
4 citations,
November 2021 in “Pharmaceuticals” Paeonia lactiflora and Poria cocos extracts can potentially increase hair growth and reduce hair loss symptoms by lowering testosterone and inflammation levels.
33 citations,
January 2017 in “Conservation physiology” Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
16 citations,
January 2017 in “Asian journal of andrology/Asian Journal of Andrology” Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
May 2022 in “Research Square (Research Square)” Melatonin improved sheep reproduction, being more beneficial and cost-effective in males.
18 citations,
May 1992 in “American Journal of Biological Anthropology” Higher androgen levels do not cause baldness in men.